Submission

Score: 100

User: patsa_v

Problemset: วิศวกรรมข้อมูล

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-14 19:47:56

#include <bits/stdc++.h>
using namespace std;

string convert(int n){
    string s = "";
    while(n > 0)
    {
        s = to_string(n%2) + s; 
        n/=2;
    }

    return s;
}

int main(){
    int n;
    cin >> n;
    vector<int> v;
    for(int i = 0;i<n;i++){
        int g;
        cin >> g;
        v.push_back(g);
    }

    sort(v.begin(),v.end());

    string temp = "";
    int max = 0;

    do {
        for (auto i: v) temp += convert(i);
        int sum = 0;
        for(int i = 0; i < temp.size() ; i++){
            sum += (temp[i] - '0') * pow(2,temp.size()-i-1);
        }
        if(sum > max){
            max = sum;
        }
        temp.clear();
    } while (next_permutation(v.begin(), v.end()));


    cout << max;

    return 0;
}